2016-04-25 · Here we demonstrate a new reversible shape-changing component design concept enabled by 3D printing two stimuli responsive polymers—shape memory polymers and hydrogels—in prescribed 3D

Stimuli-responsive polymer Shape memory polymer Smart composite abstract The past decade has witnessed remarkable advances in stimuli-responsive shape memory polymers (SMPs) with potential applications in biomedical devices, aerospace, textiles, civil engineering, bionics engineering, energy, electronic engineering, and household products. 2013-08-13 · Stimuli-responsive shape memory polymers (SMPs) change their shapes in addition to other properties such as mechanical properties , phase separation , surface , permeability , optical properties , and electrical properties , upon small variation of environmental conditions such as temperature , electric field , light , magnetic field , pH value , sonic field , solvent ions , specific antigen Different multifunctional shape memory nanocomposites responsive to different kinds of stimulation methods, including thermal responsive, electro-activated, alternating magnetic field responsive, Their paper, co-authored with alumna Erika Salzman (BS '20) is titled " Stimuli Responsive Shape Memory Microarchitectures " and was published in the journal Advanced Functional Materials on December 8. This research was supported by the Chen Neuroscience Institute and the U.S. Department of Defense. Various shape memory effects of stimuli-responsive shape memory polymers Harper Meng, Habib Mohamadian, Michael Stubblefield et al.-Development of shape memory polyurethane fiber with complete shape recoverability Yong Zhu, Jinlian Hu, Lap-Yan Yeung et al.-Effect of steaming on shape memory polyurethane fibers with various hard segmentcontents 2020-11-05 · Herein, we prepared a series of smart fluorescent hydrogels with multi-stimuli responsive fluorescence, shape memory and self-healing properties, and explored their ability in constructing different multistage data encryption platforms. As shown in Fig. 1, the hydrogels were constituted by two physical cross-linked networks. 2019-01-09 · Recovery of the original shape can then be triggered only by an external stimulus. Shape-memory polymers are highly deformable materials that can be programmed to recover a memorized shape in 2020-01-01 · Physical stimuli-responsive materials Temperature-responsive materials: Temperature is the most frequently used physical stimulus to achieve shape-transformation in bioprinted structures,,.

Stimuli responsive shape memory microarchitectures

Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125 USA. Search for more papers by this author. Stimuli Responsive Shape Memory Microarchitectures. Luizetta V. Elliott. orcid.org/https://orcid.org/0000-0002-6411-0239.

A Study of Page-Based Memory Allocation Policies for the Argo the Load Slice Core on a RISC-V based microarchitecture . Unsupervised Deep Learning for Primitive-Based Shape Abstraction . Pattern detection in Brain Signals from Simple Visual Stimuli . Responsive GUI framework in Lua .

2016-11-15 Shape‐memory polymers are stimuli‐responsive materials. Upon exposure to an external stimulus, e.g. an increase in temperature, they have the capability of changing their shape. The shape‐memory effect results from the polymer's structure and morphol Is stimuli-responsive good, bad, or exciting?

Stimuli responsive shape memory microarchitectures

28 Feb 2020 Shape memory polymers are smart materials that produce shape changes under external Shape-morphing composites with designed micro-architectures. Functional stimuli responsive hydrogel devices by self-folding.

31 Jul 2019 Internal stimuli-responsive smart biomaterials include those that respond to specific materials, pH-responsive materials, shape-memory materials Through the incorporation of microarchitecture and steric hindrance,& Shape memory polymer (SMP) is capable of memorizing one or more temporary The external stimulus may be temperature (thermo-responsive; temperature 28 Feb 2020 Shape memory polymers are smart materials that produce shape changes under external Shape-morphing composites with designed micro-architectures. Functional stimuli responsive hydrogel devices by self-folding. Keywords 4D printing, 3D printing, Additive manufacturing, Shape memory effect, Shape memory polymer stimulus-responsive shape-memory polymer nanocomposite network with Designed Micro-Architectures, Nature Publishing Group,. 10 Dec 2020 In terms of designing for 4D printing, aspects of the shape memory effect (SME) induced eigenstrain in the stimulus-responsive materials,. 19 Nov 2020 Types of stimulus-responsive photoresists and their microstructures progress in shape memory polymer composites: methods, properties, A review of stimuli-responsive shape memory polymer composites in fabricating 3-D micro-architectures on the surface of flat/particulate organic substrates. tures, microarchitectures, and extracellular matrix compositions, as well as generating Stimuli-responsive shape-memory materials and methods. Stimulus .

2019-12-30 Is stimuli-responsive good, bad, or exciting? The activation of the shape-memory effect (SME) is what captures the imagination of the engineer or designer. If you are reading this book, you likely have been inspired by the activation in some shape-memory demonstration. This work may provide the necessary knowledge base for further progress in the development of shape-memory polymers. Also, modeling stimuli-responsive polymers can shed light on agricultural and biological research.
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to other properties such as mechanical properties [1], phase separation [2], surface [3], permeability [4], optical. properties [5], and electrical properties [6], upon small. Request PDF | Various shape memory effects of stimuli-responsive shape memory polymers | One-step dual-shape memory polymers (SMPs) recover their original (permanent) shape upon small variation of 2012-01-01 · As such, they are smarter and more intelligent than ordinary materials. While in most stimulus-responsive materials, the result is limited to a change in their certain physical/chemical properties, stimulus-responsive shape memory materials (SMMs) are able to recover their original shape, after being quasi-plastically distorted.

Stimuli-responsive polymers are the type of polymeric materials defined as the responsive materials with the ability to react, sense, and respond to external condition in a predetermined shape.
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Their paper, co-authored with alumna Erika Salzman (BS '20) is titled "Stimuli Responsive Shape Memory Microarchitectures" and was published in .

This work focuses on designing self-actuated deformable solids for 4D printing such that a solid can be programmed into a temporary shape and later recovers to its original shape after heating. 2016-11-15 Shape‐memory polymers are stimuli‐responsive materials. Upon exposure to an external stimulus, e.g.

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Like the water responsive shape memory (SM) effect of β-keratin bird feathers, α-keratin hairs either existing broadly in nature are found responsive to many types of coupled stimuli in SM behaviors. In this article, α-keratin hairs were investigated for the combined stimuli of thermo-solvent, solvent-solvent, and UV (radiation)-reductant sensitive SM abilities.

Stimuli Responsive Shape Memory Microarchitectures. Luizetta V. Elliott. Shape memory programming of the characterized pillars as well as complex 3D architectures, These results reveal a pathway toward SMP devices with nanoscale features and arbitrary 3D geometries changing shape in response … Shape memory programming of the characterized pillars as well as complex 3D architectures, including flowers with 500 nm thick petals and cubic lattices with 2.5 µm unit cells and overall dimensions of 4.5 µm × 4.5 µm × 10 µm, demonstrate an 86 +/− 4% characteristic shape … Stimuli Responsive Shape Memory Microarchitectures Elliott, Luizetta V. and Salzman, Erika E. and Greer, Julia R. (2020) Stimuli Responsive Shape Memory Microarchitectures… Shape memory polymers (SMPs) especially for designs that are composed of multiple materials within porous microarchitectures designed for specific shape change strategies, A review of stimuli-responsive shape memory polymer composites. Polymer 54 (9), p. 2199–2221 (2013) Various shape memory effects of stimuli-responsive shape memory polymers To cite this article: Harper Meng et al 2013 Smart Mater. Struct. 22 093001 View the article online for updates and enhancements.

Is stimuli-responsive good, bad, or exciting? The activation of the shape-memory effect (SME) is what captures the imagination of the engineer or designer. If you are reading this book, you likely have been inspired by the activation in some shape-memory demonstration.

2016-12-07 · Shape memory polymer (SMP) is a genre of smart materials which demonstrate a capability to fix in the temporarily programed shape and to recover the original shape upon exposure to external stimuli. Such unique and amazing properties of SMPs are applied to develop smart textiles by incorporating SMP into the fabric. Various types of stimuli-responsive SMPs such as thermal, light, pH, and Stimulus-responsive materials are categorized into two types: (1) shape-changing materials which change shape whenever a stimulus is employed, and return to their original shape upon removal of the stimulus [13,17,18,19,21,23] and (2) shape-memory materials which require a programming step, during which a sample is first deformed by an external force and then fixed in a temporary shape by a New stimulus-responsive shape-memory polyurethanes capable of UV light-triggered deformation, hydrogen bond-mediated fixation, and thermal-induced recovery† Jianfeng Ban , a Luona Mu , a Jinghao Yang , a Shaojun Chen * a and Haitao Zhuo * b In this work, we reported a multi-responsive luminescent hydrogel with properties of encryption, naked eye sensing of glucose, shape memory, self-healing, and antibacterial activity. The hydrogel (GA/CCS/DNSA/Eu3+) was obtained by mixing phenylboronic acid-modified gelatin (GA-DBA), catechol-modified carboxymethyl chitosan (CCS-PCA), 3,5-dinitrosalicylic acid (DNSA), and Eu3+ ions through a The researchers provide an overview in their paper of how some of the latest stimuli-responsive biomaterials (SRBs), which include the shape memory polymer, are used to mimic the dynamic microenvironment during heart development and disease progression. Stimuli-responsive shape-memory materials are a category of fascinating smart materials, which undergo reversible shape transformation with environmental changes.

Published 13 August 2013 • 2013 IOP Publishing Ltd Smart Materials and Structures, Volume 22, Number 9 As a class of stimuli-responsive polymers, SMPs can return to their initial shape from a programmed temporary shape under external stimuli, such as light, heat, magnetism, and electricity. The introduction of functional materials and nanostructures results in shape memory polymer composites (SMPCs) with large recoverable deformation, enhanced Salzman is titled "Stimuli Responsive Shape Memory Microarchitectures" and was published in Luizetta V. Elliott et al.